import requests
from lxml import etree
import os
if __name__ == "__main__":
    url = 'https://pic.netbian.com/4kmeinv/'
    headers={
        'User-Agent':'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.131 Safari/537.36 Edg/92.0.902.67'
    }
    res=requests.get(url=url,headers=headers)
    #手动设定响应数据的编码格式
    #res.encoding='utf-8'
    page_text=res.text

    #解析src的属性值 alt属性值作为名称
    tree=etree.HTML(page_text)
    li_list = tree.xpath('//div[@class="slist"]/ul/li')

    #创建一个文件夹
    if not os.path.exists('./picLibs'):
        os.mkdir('./picLibs')
    for li in li_list:
        img_src = 'https://pic.netbian.com' + li.xpath('./a/img/@src')[0]
        img_name= li.xpath('./a/img/@alt')[0]+'.jpg'
        #通用处理中文乱码的解决方案
        img_name = img_name.encode('iso-8859-1').decode('gbk')
        #print(img_name,img_src)
        
        #持久化存储
        img_data = requests.get(url=img_src,headers=headers).content
        img_path = 'picLibs/'+img_name
        with open(img_path,'wb') as fp:
            fp.write(img_data)
            print(img_name,'下载成功')